(19)
(11) EP 4 057 478 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.11.2022 Bulletin 2022/47

(43) Date of publication A2:
14.09.2022 Bulletin 2022/37

(21) Application number: 22161444.9

(22) Date of filing: 10.03.2022
(51) International Patent Classification (IPC): 
H02J 7/00(2006.01)
H02J 7/34(2006.01)
 A01D 34/00(2006.01)
(52) Cooperative Patent Classification (CPC):
H02J 7/0013; H02J 7/0047; H02J 7/34; A01D 34/008; Y02E 60/10; Y02T 10/70
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 10.03.2021 US 202163159256 P
13.12.2021 US 202163288958 P
14.02.2022 US 202217670749

(71) Applicant: Techtronic Cordless GP
Anderson, SC 29621 (US)

(72) Inventors:
  • FELDKAMP, Jonathan
    Anderson, 29621 (US)
  • SHAO, Shuai
    Anderson, 29621 (US)
  • MIKA, Nikolas
    Anderson, 29621 (US)
  • FROST, Stephen
    Anderson, 29621 (US)
  • OGIYENKO, Denis
    Anderson, 29621 (US)
  • KONDRO, Grzegorz
    Anderson, 29621 (US)
  • CAGLE, Clint
    Anderson, 29621 (US)
  • HODGE, Elry
    Anderson, 29621 (US)
  • HINES, Colin
    Anderson, 29621 (US)
  • BARRIOS, Raony
    Anderson, 29621 (US)

(74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB 
Leopoldstraße 4
80802 München
80802 München (DE)

   


(54) LAWNMOWERS


(57) Lawnmowers are provided. A lawnmower includes a first battery having a first voltage, the first battery mounted on the lawnmower; a second battery having a second voltage different than the first voltage, the second battery mounted on the lawnmower; and a booster configured to boost the second voltage to the first voltage, wherein the booster is connected to a common rail operating at the first voltage.







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